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Proceedings Paper

New long-zoom lens for 4K super 35mm digital cameras
Author(s): Laurence J. Thorpe; Fumiaki Usui; Ryuhei Kamata
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Paper Abstract

The world of television production is beginning to adopt 4K Super 35 mm (S35) image capture for a widening range of program genres that seek both the unique imaging properties of that large image format and the protection of their program assets in a world anticipating future 4K services. Documentary and natural history production in particular are transitioning to this form of production. The nature of their shooting demands long zoom lenses. In their traditional world of 2/3-inch digital HDTV cameras they have a broad choice in portable lenses – with zoom ranges as high as 40:1. In the world of Super 35mm the longest zoom lens is limited to 12:1 offering a telephoto of 400mm. Canon was requested to consider a significantly longer focal range lens while severely curtailing its size and weight. Extensive computer simulation explored countless combinations of optical and optomechanical systems in a quest to ensure that all operational requests and full 4K performance could be met. The final lens design is anticipated to have applications beyond entertainment production, including a variety of security systems.

Paper Details

Date Published: 19 May 2015
PDF: 12 pages
Proc. SPIE 9463, Motion Imagery: Standards, Quality, and Interoperability, 94630F (19 May 2015); doi: 10.1117/12.2179695
Show Author Affiliations
Laurence J. Thorpe, Canon U.S.A., Inc. (United States)
Fumiaki Usui, Canon Inc. (Japan)
Ryuhei Kamata, Canon U.S.A., Inc. (United States)

Published in SPIE Proceedings Vol. 9463:
Motion Imagery: Standards, Quality, and Interoperability
Donnie Self, Editor(s)

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